tm_filter

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Filter and Index Functions on Corpora

Interface to apply filter and index functions to corpora.

Usage
"tm_filter"(x, FUN, ...) "tm_filter"(x, FUN, ...) "tm_index"(x, FUN, ...) "tm_index"(x, FUN, ...)
Arguments
x
A corpus.
FUN
a filter function taking a text document as input and returning a logical value.
...
arguments to FUN.
Value

tm_filter returns a corpus containing documents where FUN matches, whereas tm_index only returns the corresponding indices.

Aliases
  • tm_filter
  • tm_filter.PCorpus
  • tm_filter.VCorpus
  • tm_index
  • tm_index.PCorpus
  • tm_index.VCorpus
Examples
data("crude")
# Full-text search
tm_filter(crude, FUN = function(x) any(grep("co[m]?pany", content(x))))
Documentation reproduced from package tm, version 0.6-2, License: GPL-3

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